Figure 4.

Spin-Hamiltonian simulation of the powder distribution of the INS transitions within the lowest Kramers doublet of the $S=3/2$ system, arising from angular dependence of the Zeeman splitting for a field of 2 T at 1.7 K. Transition probabilities were obtained from the expression for $\left|\mathit{Q}\right|=0{\text{Å}}^{-1}$ given in Equation 2 (red line). The simulation is obtained with the parameters from the previous EPR and SQUID^[7] analyses of 1 without any further fitting (Table 2, Gaussian lines, FWHM = 1 cm⁻¹). The black marks indicate the transitions with the field oriented along the principal axes of the effective spin $g^{\prime }$-matrix, as obtained by EPR for the ground-state Kramers doublet (KD₁)^[7] and reproduced by the spin-Hamiltonian.